Two-dimensional scanning device having compensation for scanned

Details Two-dimensional scanning device having compensation for scanned Two-dimensional scanning device having compensation for scanned

1980-01-03

1982-02-02

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

350 66, 350 67, 355 8, 358206, 358293, H04N 104

Patent

active

043141544

ABSTRACT:
A two-dimensional scanning device provided with a first deflector for deflecting a collimated beam, a second deflector for deflecting the incident beam in a direction orthogonal to the deflection direction of the first deflector, a scanning lens disposed between the first deflector and the second deflector, a scanning surface for imaging the scanning beam from said scanning lens through the second deflector, and a device for moving the scanning lens in the direction of its optic axis in synchronism with the rotation of the second deflector to thereby obtain a strain-free two dimensional scanning figure on the scanning surface.

REFERENCES:
patent: 3970359 (1976-07-01), Starkweather
patent: 4070089 (1978-01-01), Grafton

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